Federal officials say people still won't be allowed to fish in the 20-mile creek because there are still low levels of contaminants in its sediment. But the Environmental Protection Agency says testing has shown the water is safe.

The project has taken several years and was funded in part with federal recovery act money.

The Savannah River Site is a 310-square-mile facility that once manufactured bombs for the nation's nuclear arsenal. Work there is now focused on re-purposing some of those materials and cleaning up the site.